alive
活着;在世
We don't know whether he's alive or dead.
我们不知道他是死是活。
Is your mother still alive ?
你的母亲还健在吗?
require
需要;依靠;依赖
These pets require a lot of care and attention.
这些宠物需要悉心照顾。
This condition requires urgent treatment.
这种情况得紧急处理。
surely
(对自己的话很有把握,希望他人同意)想必
Surely we should do something about it?
我们总得想个办法吧?
It's surely only a matter of time before he is found, isn't it?
找到他只是个时间问题,对不对?
task
(尤指艰巨或令人厌烦的)任务,工作
to perform / carry out / complete / undertake a task
执行/完成/承担任务
a daunting / an impossible / a formidable / an unenviable, etc. task
令人望而生畏、不可能完成、艰巨、令人为难等的任务
a thankless task (= an unpleasant one that nobody wants to do and nobody thanks you for doing)
吃力不讨好的工作
Our first task is to set up a communications system.
我们的首项任务是架设通信系统。